... or DVR 4.Long distance:2k-3k 5.Low price video transmitter receiver*4 channels available to avoid interference*Transmission distance ... range: 2314-2468MHz*Suitable for any camera and any digital video recorder*Easy play on TV or PC computer*Size: 88mm ... customer’s demand in our factory ) , it could charge laptop , camcorder, mobile phone, iPOD, iPhone, PSP, PMP, MP3, MP4,DVR, portable ...